Windsurf

Countersign by Signalry for Windsurf

ai.signalry/countersign

Verifiable agent claims. First step: request_key {public:true}, then submit_claim on a URL you run.

client:Windsurf transport:streamable-http tools:19

Install Countersign by Signalry in Windsurf

~/.codeium/windsurf/mcp_config.json · windows: %USERPROFILE%\.codeium\windsurf\mcp_config.json

{
  "mcpServers": {
    "countersign": {
      "serverUrl": "https://countersign.signalry.ai/mcp?ref=mcp-registry"
    }
  }
}

Global only — Windsurf has no per-project MCP config. Refresh Cascade after saving. Windsurf docs

What Windsurf can do once it is connected

Countersign by Signalry in other clients

Countersign by Signalry MCP server